380690826 has 32 divisors (see below), whose sum is σ = 807003648. Its totient is φ = 119308800.

The previous prime is 380690803. The next prime is 380690831. The reversal of 380690826 is 628096083.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194151 + ... + 196101.

It is an arithmetic number, because the mean of its divisors is an integer number (25218864).

Almost surely, 2^380690826 is an apocalyptic number.

380690826 is an abundant number, since it is smaller than the sum of its proper divisors (426312822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380690826 is a wasteful number, since it uses less digits than its factorization.

380690826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 380690826 is about 19511.2999566918. The cubic root of 380690826 is about 724.7543050139.

The spelling of 380690826 in words is "three hundred eighty million, six hundred ninety thousand, eight hundred twenty-six".